What is the main purpose of a crankshaft damper?

A crankshaft damper, also known as a harmonic balancer, is designed to absorb torsional vibrations from the crankshaft. These vibrations can increase significantly with higher engine speeds and power output, and the damper helps prevent damage to the crankshaft and other engine components.

Why is the material and size of the damper important?

The lightweight aluminum construction of this damper helps reduce rotational mass at the front of the engine, which can improve engine response. The 7.48-inch diameter is a specific size that needs to match the application for proper fitment and function with the accessory belts.

What does the '6/4 Grv - 3 Ring' designation mean?

This refers to the belt groove configuration. The '6 Grv' indicates six grooves for the primary serpentine belt, and the '4 Grv' indicates four additional grooves for an accessory belt. The '3 Ring' refers to the damper's construction, which typically involves multiple bonded components to effectively absorb vibrations.

Specifications

Brand: ATI
Part #: ATI917264
UPC: 800157032066

ATI Damper - 7.48in - Alum LW - 6/4 Grv - LS1/LS2 - F & V Body - 3 Ring

Name: ATI Damper - 7.48in - Alum LW - 6/4 Grv - LS1/LS2 - F & V Body - 3 Ring
Brand: ATI
SKU: ati-ati-damper-7-48in-alum-lw-6-4-grv-ls1-ls2-f-v-body-3-ring-t14-361277
Price: 507.80 USD
Availability: BackOrder

$507.80

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Key Features

Fits LS1 and LS2 engines in GM F-body and V-body vehicles.
Lightweight aluminum construction reduces rotational mass.
Features a 3-ring design with 6 primary grooves and 4 accessory grooves.
7.48-inch diameter is a common size for many LS applications.
Designed to manage crankshaft harmonics and reduce vibrations in high-performance engines.

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About this part

Product Details

If you're building a high-performance LS engine, especially one destined for a GM F-body or V-body car, managing crankshaft harmonics is critical. This ATI Performance Products crankshaft damper is designed to handle the stresses of powerful LS1 and LS2 engines. It's built to keep your crankshaft running smoothly and prevent potential damage from vibrations, which become much more pronounced as you increase horsepower and RPM.

This damper features a lightweight aluminum construction, reducing rotational mass at the front of your engine. It incorporates a 3-ring design with 6 grooves for the primary belt and 4 grooves for an accessory belt, offering flexibility for various setups. The 7.48-inch diameter is a common size for many LS applications, and ATI is well-known for producing robust components that hold up under demanding conditions. Installing a damper like this is a key step in ensuring the longevity and reliability of your modified engine, especially when you're pushing beyond stock power levels.

When installing this damper, ensure you have the proper tools to remove the old unit and press the new one on securely. It's crucial that the damper is seated fully and squarely on the crankshaft snout to function correctly and prevent any imbalance. This damper is a solid choice for anyone serious about building a reliable and powerful LS engine.